Home / 770,743,419.40-1,155,779,205.90-310,528,635.40

Finding the Fourth Proportional to 770,743,419.40, 1,155,779,205.90 and 310,528,635.40

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Solution

The fourth proportional to 770,743,419.40, 1,155,779,205.90 and 310,528,635.40 is: 465,657,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,743,419.40 : 1,155,779,205.90 = 310,528,635.40 : x
  2. Step 2: Convert to fraction form
    770,743,419.40/1,155,779,205.90 = 310,528,635.40/x
  3. Step 3: Cross multiply
    770,743,419.40x = 1,155,779,205.90 × 310,528,635.40
  4. Step 4: Simplify right side
    770,743,419.40x = 358,902,539,631,822,656
  5. Step 5: Solve for x
    x = 358,902,539,631,822,656/770,743,419.40
  6. Step 6: Final answer
    x = 465,657,611.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.